Jar-top.



W. WpKEYS.

JAR TOP.

' APPLICATION FILED 1 ULY12. I916.

Patented. Oct. 17,1916.'

Witnesses witha neck 2 having the head or outstand- WILLIAM W. KEYS, 0F LANCASTER, OHIO.

JAR-TOP.

Specification of Letters Patent.

Application filed July 12, 1916. Serial No. 108,886.

To all whom it may concern:

Be it known that I, WILLIAM W. KEYS, a citizen of the United States, residingat Lancaster, in the county of Fairfield and State ofOhio, have invented a new and useful Jar-Top, of which the following is a specification.

The present invention relates to ar tops, and aims to provide a novel and improved yet simple, inexpensive, convenient and efficient closure means for fruit jars, cans, and the like.

With the foregoing and other objectsin view. which Will appear .asthe description proceeds,'the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodimentof the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accom- I panying drawing, wherein Figure 1 is a side elevation of the jar top. Fig. 2 is a section on the line 22 of Fig. 1. The jar or can 1 illustrated is provided ing rim 3, and the device for clamping the cover on the neck embodies a yoke 4 bent from a bar of relatively stiff metal, and having the limbs 5 adapted to be disposed at diametrically opposite points of the neck and provided at their lower ends with inturned lips or flanges 6 to engage under the rim 3. The yoke 41.- is provided between'its ends with an upstanding relatively long doubled or inverted U-shaped guide 7 in which a square nut 8 is fitted for ;vertical sliding movement, said nut being constrained from rotating by the guide '7, since opposite straight sides of the nut bear against the limbs or side portions of said guide. A bolt or spindle 9 is slidable through the upper closed end of the guide, and has its lower terminal threaded through the nut 8, and the upper protruding end Copies of this patent may be obtained for Patented Oct. 17, 1916.-

of the spindle or bolt 9 has a thumb and finger piece 10. 'A coiled wire expansionspring 11 is confined between the upper closed end of the guide and the nut 8 and is disposed snugly within said guide, and

the lower end ofthe bolt 9 is adapted to contact with or bear upon the central portion of the cover 12 of the jar.

When the cover 12 is placed upon the jar,

the yoke 4 can be readily moved laterally into place, as seen in Fig. 1, and then by rotating the bolt 9 in the proper direction, with the lower'end of said bolt bearing upon the cover 12,.the nut 8 will be forcibly moved upwardly. away from the cover 12,

thereby compressing the spring 11,: which 7 i will force the bolt-9 downwardly by spring tension to hold the cover 12 in place. The cover 12 is thus yieldably held in place, and

can yield, if necessary, to avoid the break ing of the jar or cover, but at the same time,

the spring 11 in being brought under the.

desired tension, will hold the cover closed to provide a tight joint, which will be sufficient to prevent leakage under thecover.

Having thus described the invention, what is claimed as new is:

A device of the character described em bodying a yoke having means at its ends for engaging under the rim of a jar and having a relatively long upstanding doubled guide between its ends, a bolt slidable through the upper closed end of said guide and adapted to bear upon a ar cover, a nut slidable vertically within said guide and prevented from rotating thereby, the" bolt as my own, I have hereto affixed my signature in the presence of two witnesses.

WILLIAM W. KEYS. Witnesses:

C. E. RoBLE,

RowLns.

five cents each, by addressing the "Commissioner oi' Patents, Washington, D. C. 

